title: Accessory mitral valve without left ventricular outflow tract obstruction in an adult.
abstract: Accessory mitral valve is a rare congenital abnormality and an unusual cause of subvalvular obstruction of the left ventricular outflow tract. Accessory mitral valves are usually detected in children due to symptomatic obstruction; isolated nonobstructive accessory mitral valve is rarely seen in adults. We describe the echocardiographic diagnosis of accessory mitral valve as an isolated congenital anomaly not associated with a substantial degree of obstruction of the left ventricular outflow tract in an asymptomatic adult patient. This case highlights the importance of transthoracic and transesophageal echocardiography in the diagnosis and follow-up of this uncommon congenital anomaly.
authors.affiliation: Department of Cardiology, Texas Heart Institute at St. Luke's Episcopal Hospital, Houston, Texas 77030, USA.
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Rozo
authors.forename: Dajhana
authors.initials: D
authors.lastname: Medina
authors.forename: Cesar
authors.initials: C
authors.lastname: Guerrero
authors.forename: Ana Maria
authors.initials: AM
authors.lastname: Calderon
authors.forename: Andrés
authors.initials: A
authors.lastname: Mesa
mesh_terms: D017548:Echocardiography, Transesophageal; D005260:Female; D006801:Humans; D033162:Incidental Findings; D008875:Middle Aged; D008943:Mitral Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014694:Ventricular Outflow Obstruction / Q000000981:diagnostic imaging*